Die-separating means



Sept. 29, 1925. 25555 731 R. L. wimm DIE SEPARATING MEANS Filed Oct. 31,, E323 Patented Sept. 29, 1925.

ems-s1) yyr 'iqnie s v:rennet F UNDRY AND MACHINE COMPANY, or WAT RB Y, 001v- NECTICUT, A eonronerrqn 0F ecmiEcTIc-Ucr.

DI -S P RATING MEANS.

To .all whom i m y e ncem: i

Be it imeevn th :RiQHArD Le see-We 00X,n citizen of the United States, residing at vWaterhury, in the county 9f NeWJ-Iayen and State of iconnect icut haye invented cert-(tin newnnd usezful Improvements indie-"Sepallietins M an o whic th f l wing; 18 a ..s ,eeifiqetien, istereuc heirs h d t rein to the eceemp t y l g e eiese- My inv ntion relat t til :s r retms m me it r n lm eh-ie beiust prqvi simpl me hanism t tes ret i ng h di 7 of n @1 di h d o ps tt ng machin Among o r im en obieqts "my inventi n may be r ci e th provision of a d vice 30f th fill ll'flCm inentiened with :toeompe mes ar in wh ch the me .be Qfpats e ell wj; heeen rie ion s mp the cost of production smell, endreflieiency of ppe e ien high- Th improvements in th detai s ,e edi rens' me o part -Wi ie appa ent rom y en nsp t-i0 1 o the e mpeny tlg dra ings,

conn ct on with i h descripti n lie-e eth r eont in o em wher in, a embod m i-io the nven ien is disc sed tor the Pu p de imp t ns e tell unders ndi g t LSZLTHQ- Having more particular reference to the dr win a d in ce me i n wit w ch like ret rene diameters ref to wr esp idi yrert in tli tse eiie fi r s;

Figure 1 sef -nqnt i W- fe P2 1 0f d s of eilie d ss me i e Qrthe k vand a ra menta P ti o it sup rt-ms mechanism with my itnp oye d separating me s eesnected h wi h;

Fi re 2 i .a e ti n e e et e the f taken generally up en line of Figure 1;

Figure 3 is e perspective view pf one of th dies;

.F sulre & i e medifi d fermet my inv imlnedified form; Figure 6 is anelternetive term of cam plate; and

F ure 7 is a t o tv ew of, wei o s, m ar to Figure it the" s peret ns ineans applied 'to the underside of the dies t il e :l re o be n th Pra i to ur 5 s-e fragment y detaile s h separate the dies of an open die header ,or upsetting machine at the Wire teedline by Per mgrins s pa Pin or th lik anillustration ,ot' such means being shown in Letters Patent No. 1,10%LQ90, dated July 21 ,1914, particularly in Figure 4 thereof, und also in Letters Patent No. 1 108 ,958, d ted Sep b l, 1 a h avy fi si ing, not shown in either of the above patents, hearing upon the upper end of each of the parting pins or separating pins, Which move in a path at suhstgmtittlly a right nngie to the movement of the dies. With such, mechanism the die cap or other part ,orparts thatsupport the pins nu-st; ,be machined with great care and exectness and each nrustbe incorrect alignment with each .other end the gro v uf me by th Annula corneriec s 0f the dies, When the cliesare inproxin ity t0 the Wire feedline. Ifthe p-ins lere not so arranged, the lower pointed end. thereof will ,n tyr giste it sa gr eth is ha i a tendency cramp the iesen pp f unequal pressure thereto at difierent points t r ugh t th ir lei s Ifthi ow the di may besepera ed mot at 9119 e dth at the Q1I11QI,,8;I1(1 if perchanee themini num s p r tifl i a the in r-6 1d O th die a .defectiuefeed of the ire results and the end f th W mmey abu gain t d es e stop the feed.

' With the use of such pins the spring pres sure upon the end thereof iscon ste nt, therefore it requires not only a pressuresutficient t 0 II 1 QV e the dies and cutoff the Wire but also to resist the pressure ef the pin actuating springs tvhieh pressure is constant upon the, t p pf one of the dies during its entire- ,n ieyeinent. There is .110 HSBV'I'OI this pressure except When the dies are to be sepe'ret-ed at the Wire feed line, hence n orelpower is necessarily required to actuate the dies. Wh e m P rfu m hani m i equi to move the'dies from the wire fee d line to the'upsetting line, the dies are usually reurne y r n pressur th s ength f which must 9f necessity also be increased to eyercome the needless drag and pressure of the p n As t Pi s-ar ef substentia eng h element in which they are mounted'n ust of the heretofore conventional method for separating the dies are obviated in my improved device, which occupies the minimum amount of not otherwise required space, pressure is applied only when the dies are to be separated, the necessity of fine machiningof the parts is entirely eliminated, and in these, and many other ways, produces results that are advantageous and insure certainty and efficiency in operation, and with mechanism .that is of comparatively simple design.

Having more particular reference to the drawings, the numerals 10 and 11 represent the dies, which are of the usual form but having notches 17 at their corners with end walls 16, the base of each of the notches being at an angle to the face of the die. These notches unite to form a V shaped groove substantially as shown in Figures 1 and 7,

wherein the dies are near the wire feed line, this being-coincident with the line 2-2 of Figure 1- A piece of wire designated 13 is shown in section at this point.

The bed plate upon which the dies are supported is designated 14, and the cap or cover over the top thereof 15.

All of the mechanism above described GX-V cept the notches'17 in the dies, is of a well known form and operates in an equally well known manner and therefore needs no further description herein.

The means for actuating the dies is not shown herein for the above reason, but the same travel betweenthe wire feed line and the upsetting line, which latter line is designated w-w in Figure 1. From the wire feed line to the upsetting line the dies are positively actuated by relatively powerful mechanism to cut off a piece of the wire rod but are usually'returned from the upsetting line by spring mechanism.

In dies of the conventional form designated 10 in Figure 4c, the angular faces 12 extend throughout the length of the die and the cam plate 18 is provided with notches 21 having cam faces 19 upon the bottom thereof.

' venient manner.

Another form of cam plate 18 is shown I so arranged that the cam face 19 is in line with the wire feed line.

In each of the notches 17 is a ball or roller 20 which is held against endwise movement by the walls 16.

In operation the balls or rollers 20 travel with the dies until the latter are near and at the wire feed line, when they are in engagement with the cam face 19 and the angular faces at the base of the notches 17. As the dies move from the wire feed line to the upsetting line, the balls or rollers travel with the dies and away from the cam face 19 so that whenin the upsetting line they are in substantially the position shown by broken lines in Figure 1. When the dies are returned to the wire feed line the upper surface of the balls or rollers again contacts with the cam face 19 and movesdownwardly, thus separating the dies. Thus my improved die separating mechanism requires a minimum amount ofspace, pressure is only applied when required, that is, when the dies' are at or ,near the wire feed line, and in these and '20 will ride upon the cam face 19 'of the cam plate 18 instead of in the V groove as when used upon the top thereof,

' In Figure 6 is illustrated another form of cam plate 18 having notches 21 therein, the bottom of each of the notches having a cam face 19 connecting with a straight portion 22. The cams 18 and 18 as illustrated in Figures 4, 5 and 6, maybe used with the form of dies shown in Figures 1, 2, 3 and 7, if desired, in which case the rollers 20 will project into both the notches in the cam plate and those in the die. w There are minor changes and alterations that can be made within my invention, aside from those herein suggested, and I would therefore have .it understood that I. do not limit myself to the exact construction herein shown and described, but claim all that falls fairly within the spirit and scope of the appended claims.

Having descrlbed my invention what I claim as new and desire to secure by Letters rating the dies, wherein the dies are each provided with one or more notches in the corners thereof, comprising one or more circular elements in each of the notches and movable with the-dies, and a cam with which the circular elements engage when near the wire feed line.

2. A die for a heading machine or the like, having one or more independent notches angle to the faces of the die forming each of said corners.

3. A die for a heading machine or the like, having square corners and one or more separate notches in said corners between the ends of the die, the bases of the notches being at an angle to the faces of the die forming each of said corners.

In testimony whereof, I have hereunto 20 

